There are some features of Facebook which are even unknown to most of the Facebook users. One of these features is for the security of your account. Through this you can see from where your account was logged in. Go to your setting, click security and select ‘Where you’re logged in”.
Another feature is selecting someone who may own your account after your death. This ‘Legacy’ option is only available when you are alive, after your death no one can claim to take your account. Go to your settings and click security and Select someone who may own this account after your death.
If you want to chat with a Facebook friend but do not want to be disturbed by Facebook notifications then visit messenger.com from where you can chat with your friends.